The structure for covering a composite panel with a thermosetting porosity matrix， a manufacturing method， and the wall formed from the aggregate

The invention relates to a composite panel with a thermosetting cellular matrix， to a method for manufacturing said panel， and to a structure for covering a wall that is formed from an assembly of such panels. Said structure provides the wall with heat insulation against cryogenic fluids and/or protection against fire or flames and/or sealing against said fluids. A panel according to the invention， having a thermosetting cellular matrix (9)， comprises at least one substrate (1) that includes short， non-woven basalt fibers (2a， 3a， 4a， 5a) and is impregnated by said matrix. The panel is such that the at least one substrate includes a plurality of non-woven layers (2， 3， 4， 5) stacked to a stacking thickness (e). The non-woven layers each comprise the short basalt fibers and are needled through said thickness without using thermoplastic fibers. The invention relates to a composite panel with a thermosetting cellular matrix， to a method for manufacturing said panel， and to a structure for covering a wall that is formed from an assembly of such panels. Said structure provides the wall with heat insulation against cryogenic fluids and/or protection against fire or flames and/or sealing against said fluids. A panel according to the invention， having a thermosetting cellular matrix (9)， comprises at least one substrate (1) that includes short， non-woven basalt fibers (2a， 3a， 4a， 5a) and is impregnated by said matrix. The panel is such that the at least one substrate includes a plurality of non-woven layers (2， 3， 4， 5) stacked to a stacking thickness (e). The non-woven layers each comprise the short basalt fibers and are needled through said thickness without using thermoplastic fibers.